/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hop.pipeline.transforms.rowstoresult;

import org.apache.hop.core.RowMetaAndData;
import org.apache.hop.core.exception.HopException;
import org.apache.hop.i18n.BaseMessages;
import org.apache.hop.pipeline.Pipeline;
import org.apache.hop.pipeline.PipelineMeta;
import org.apache.hop.pipeline.transform.BaseTransform;
import org.apache.hop.pipeline.transform.ITransform;
import org.apache.hop.pipeline.transform.TransformMeta;

/** Writes results to a next pipeline in a Job */
public class RowsToResult extends BaseTransform<RowsToResultMeta, RowsToResultData>
    implements ITransform<RowsToResultMeta, RowsToResultData> {
  private static final Class<?> PKG = RowsToResult.class; // For Translator

  public RowsToResult(
      TransformMeta transformMeta,
      RowsToResultMeta meta,
      RowsToResultData data,
      int copyNr,
      PipelineMeta pipelineMeta,
      Pipeline pipeline) {
    super(transformMeta, meta, data, copyNr, pipelineMeta, pipeline);
  }

  @Override
  public boolean processRow() throws HopException {

    Object[] r = getRow(); // get row, set busy!
    if (r == null) { // no more input to be expected...

      ((Pipeline) getPipeline()).getResultRows().addAll(data.rows);

      setOutputDone();
      return false;
    }

    // Add all rows to rows buffer...
    data.rows.add(new RowMetaAndData(getInputRowMeta(), r));
    data.outputRowMeta = getInputRowMeta().clone();
    meta.getFields(data.outputRowMeta, getTransformName(), null, null, this, metadataProvider);
    putRow(data.outputRowMeta, r); // copy row to possible alternate
    // rowset(s).

    if (checkFeedback(getLinesRead())) {
      logBasic(BaseMessages.getString(PKG, "RowsToResult.Log.LineNumber") + getLinesRead());
    }

    return true;
  }

  @Override
  public boolean init() {

    if (super.init()) {
      // Add init code here.
      return true;
    }
    return false;
  }
}
